Subversion Repositories SmartDukaan

package in.shop2020.serving.services;

import in.shop2020.logistics.Provider;

import in.shop2020.model.v1.order.Order;

import in.shop2020.model.v1.user.Address;

import in.shop2020.model.v1.user.User;

import in.shop2020.model.v1.user.UserContextException;

import in.shop2020.serving.utils.Utils;

import in.shop2020.thrift.clients.LogisticsServiceClient;

import in.shop2020.thrift.clients.TransactionServiceClient;

import in.shop2020.thrift.clients.UserContextServiceClient;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.StringWriter;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Date;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.Properties;

import org.apache.log4j.Logger;

import org.apache.thrift.TException;

import org.apache.velocity.Template;

import org.apache.velocity.VelocityContext;

import org.apache.velocity.app.Velocity;

import org.apache.velocity.exception.MethodInvocationException;

import org.apache.velocity.exception.ParseErrorException;

import org.apache.velocity.exception.ResourceNotFoundException;

public class PageLoaderHandler {

    private static Logger logger = Logger.getLogger(PageLoaderHandler.class);

	public String getSlideGuideHtml(long productId) {

		StringBuilder htmlString = new StringBuilder();

		String filename = Utils.EXPORT_ENTITIES_PATH + productId + File.separator + "SlideGuide.html";

		File f = new File(filename);

		FileInputStream fis = null;

		try {

			fis = new FileInputStream(f);

			BufferedReader br = new BufferedReader(new InputStreamReader(fis));

			String line;

			while((line = br.readLine()) != null){

				htmlString.append(line+"\n");

			}

		} catch (FileNotFoundException e) {

			logger.error("Unable to find the slide guide for " + productId, e);

		} catch (IOException e) {

		    logger.error("Unable to read the slide guide for " + productId, e);

		}

		finally {

			if(fis != null) {

				try {

					fis.close();

				} catch (IOException e) {

				    logger.warn("Unable to close the slide guide for " + productId, e);

				}

			}

		}

		return htmlString.toString();

	}

	public String getProductSummaryHtml(long productId) {

		StringBuilder htmlString = new StringBuilder();

		String filename = Utils.EXPORT_ENTITIES_PATH + productId + File.separator + "ProductDetail.html";

		File f = new File(filename);

		FileInputStream fis = null;

		try {

			fis = new FileInputStream(f);

			BufferedReader br = new BufferedReader(new InputStreamReader(fis));

			String line;

			while((line = br.readLine()) != null){

				htmlString.append(line+"\n");

			}

		} catch (FileNotFoundException e) {

			logger.error("Unable to find the product summary file", e);

		} catch (IOException e) {

			logger.error("Unable to read the product summary file", e);

		}

		finally {

			if(fis != null) {

				try {

					fis.close();

				} catch (IOException e) {

					logger.error("Unable to close the product summary file", e);

				}

			}

		}

		return htmlString.toString();

	}

	public String getProductPropertiesHtml(long productId) {

		StringBuilder htmlString = new StringBuilder();

		String filename = Utils.EXPORT_ENTITIES_PATH + productId + File.separator + "ProductPropertiesSnippet.html";

		File f = new File(filename);

		FileInputStream fis = null;

		try {

			fis = new FileInputStream(f);

			BufferedReader br = new BufferedReader(new InputStreamReader(fis));

			String line;

			while((line = br.readLine()) != null){

				htmlString.append(line+"\n");

			}

		} catch (FileNotFoundException e) {

		    logger.error("Unable to find the product properties file", e);

		} catch (IOException e) {

			logger.error("Unable to read the product properties file", e);

		} finally {

			if(fis != null) {

				try {

					fis.close();

				} catch (IOException e) {

					logger.error("Unable to close the product properties file", e);

				}

			}

		}

		return htmlString.toString();

	}

	public String getSearchBarHtml(long itemCounts, long categoryId) {

		String htmlString = "";

		VelocityContext context = new VelocityContext();

		String templateFile = "templates/searchbar.vm";

		context.put("itemCount", itemCounts+"");

		context.put("categoryId", categoryId+"");

		htmlString = getHtmlFromVelocity(templateFile, context);

		return htmlString;

	}

	public String getHeaderHtml(boolean isLoggedIn, String  userName, String url) {

		VelocityContext context = new VelocityContext();

		if (isLoggedIn) {

			context.put("LOGGED_IN", "TRUE");

			context.put("WELCOME_MESSAGE", "Hi, " + userName);

		} else {

			context.put("WELCOME_MESSAGE", "Hi, Welcome to Saholic");

			context.put("REDIRECT_URL", url);

		}		

		String templateFile = "templates/header.vm";

		return getHtmlFromVelocity(templateFile, context);

	}

	public String getOrderDetailsHtml(long orderId, long userId) {

		String htmlString = "";

		VelocityContext context = new VelocityContext();

		String templateFile = "templates/orderdetails.vm";

		Order order = null;

		Date orderedOn = null, deliveryEstimate = null;

		Provider provider = null;

		try{

			TransactionServiceClient transactionServiceClient = new TransactionServiceClient();

			in.shop2020.model.v1.order.TransactionService.Client orderClient = transactionServiceClient.getClient();

			order = orderClient.getOrderForCustomer(orderId, userId);

			orderedOn = new Date(order.getCreated_timestamp());

			deliveryEstimate = new Date(order.getExpected_delivery_time());

			if(order.getLogistics_provider_id() != 0){

				LogisticsServiceClient logisticsServiceClient = new LogisticsServiceClient();

				in.shop2020.logistics.LogisticsService.Client logisticsClient = logisticsServiceClient.getClient();

				provider = logisticsClient.getProvider(order.getLogistics_provider_id());

			}

		}catch (Exception e){

		}

		SimpleDateFormat dateformat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss aa");

		SimpleDateFormat dateformat1 = new SimpleDateFormat("dd/MM/yyyy");

		context.put("order", order);

		context.put("orderedOn", dateformat.format(orderedOn));

		context.put("deliveryEstimate", dateformat1.format(deliveryEstimate));

		if(provider!=null){

			context.put("providerName", provider.getName());

		}

		htmlString = getHtmlFromVelocity(templateFile, context);

		return htmlString;

	}

	public String getMyaccountDetailsHtml(long userId) {

		String htmlString = "";

		VelocityContext context = new VelocityContext();

		String templateFile = "templates/myaccount.vm";

		List<Order> orders = null;

		Map<Long, String> providerNames = new HashMap<Long, String>();

		try{

			TransactionServiceClient transactionServiceClient = new TransactionServiceClient();

			in.shop2020.model.v1.order.TransactionService.Client orderClient = transactionServiceClient.getClient();

			orders = orderClient.getOrdersForCustomer(userId, 0, (new Date()).getTime(), null);

			LogisticsServiceClient logisticsServiceClient = new LogisticsServiceClient();

			in.shop2020.logistics.LogisticsService.Client logisticsClient = logisticsServiceClient.getClient();

			List<Provider> providers = logisticsClient.getAllProviders();

			for(Provider provider: providers)

				providerNames.put(provider.getId(), provider.getName());

		}catch (Exception e){

			logger.error("Unable to get order or provider details", e);

		}

		List<String> orderDate = new ArrayList<String>();

		SimpleDateFormat dateformat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss aa");

		if(orders!=null && !orders.isEmpty()){

			for(Order order: orders){

				Date orderedOn = new Date(order.getCreated_timestamp());

				orderDate.add(dateformat.format(orderedOn));

			}

		}

		context.put("orders", orders);

		context.put("orderDate", orderDate);

		context.put("providerNames", providerNames);

		htmlString = getHtmlFromVelocity(templateFile, context);

		return htmlString;

	}

	public String getLoginDetailsHtml(long userId) {

		String htmlString = "";

		VelocityContext context = new VelocityContext();

		String templateFile = "templates/logindetails.vm";

		String email = "";

		try{

			email = getEmailId(userId);

		}catch (Exception e){

		}

		context.put("email", email);

		htmlString = getHtmlFromVelocity(templateFile, context);

		return htmlString;

	}

	public String getEmailId(long userId){

		String email = " ";

		try {

			UserContextServiceClient userContextServiceClient = new UserContextServiceClient();

			in.shop2020.model.v1.user.UserContextService.Client userClient = userContextServiceClient.getClient();

			String userEmail = userClient.getUserById(userId).getEmail(); 

			if( userEmail != null){

				email = userEmail;

			}

		} catch (UserContextException e) {

			logger.error("Unable to get the user for " + userId, e);

		} catch (TException e) {

		    logger.error("Unable to get the user for " + userId, e);

		} catch (Exception e) {

		    logger.error("Unable to get the user for " + userId, e);

		}

		return email; 

	}

	public String getPersonalDetailsHtml(long userId) {

		String htmlString = "";

		VelocityContext context = new VelocityContext();

		String templateFile = "templates/personaldetails.vm";

		String email = "";

		String name = "";

		String dateOfBirth = "";

		String sex = "";

		String subscribe = "false";

		UserContextServiceClient userContextServiceClient = null;

		in.shop2020.model.v1.user.UserContextService.Client userClient = null;

		try{

			User user = null;

			userContextServiceClient = new UserContextServiceClient();

			userClient = userContextServiceClient.getClient();

			user = userClient.getUserById(userId);

			email = user.getCommunicationEmail();

			name = user.getName();

			dateOfBirth = user.getDateOfBirth();

		}catch (Exception e){

		    logger.error("Unable to get the user for " + userId, e);

		}

		context.put("name", name);

		context.put("email", email);

		context.put("dateOfBirth", dateOfBirth+"");

		context.put("subscribe", subscribe);

		context.put("sex", sex);

		htmlString = getHtmlFromVelocity(templateFile, context);

		return htmlString;

	}

	public String getMyaccountHeaderHtml() {

		String htmlString = "";

		VelocityContext context = new VelocityContext();

		String templateFile = "templates/myaccountheader.vm";

		htmlString = getHtmlFromVelocity(templateFile, context);

		return htmlString;

	}

	public String getShippingAddressDetailsHtml(long userId, String errorMsg){

		String htmlString = "";

		VelocityContext context = new VelocityContext();

		String templateFile = "templates/shippingaddressdetails.vm";

		long defaultAddressId = 0;

		List<Address> addresses = null;

		UserContextServiceClient userContextServiceClient = null;

		in.shop2020.model.v1.user.UserContextService.Client userClient = null;

		try {

			userContextServiceClient = new UserContextServiceClient();

			userClient = userContextServiceClient.getClient();

			addresses = userClient.getAllAddressesForUser(userId);

			defaultAddressId = userClient.getDefaultAddressId(userId);

		} catch (Exception e) {

		    logger.error("Unable to get either the user for " + userId + " or his address", e);

		}

		context.put("defaultAddressId", defaultAddressId+"");

		context.put("addresses", addresses);

		context.put("errorMsg", errorMsg);

		htmlString = getHtmlFromVelocity(templateFile, context);

		return htmlString;

	}

	public String getHtmlFromVelocity(String templateFile, VelocityContext context){

		Properties p = new Properties();

		p.setProperty("resource.loader", "class");

		p.setProperty("class.resource.loader.class",

		"org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader");

		p.setProperty("runtime.log.logsystem.class", "org.apache.velocity.runtime.log.NullLogSystem"); 

        try {

            Velocity.init(p);

            // Velocity.setProperty(Velocity.FILE_RESOURCE_LOADER_PATH, value)

            Template template = Velocity.getTemplate(templateFile);

            if (template != null) {

                StringWriter writer = new StringWriter();

                template.merge(context, writer);

                writer.flush();

                writer.close();

                return writer.toString();

            }

        } catch (ResourceNotFoundException e) {

            logger.error("Unable to find the template file " + templateFile, e);

        } catch (ParseErrorException e) {

            logger.error("Unable to parse the template file " + templateFile, e);

        } catch (MethodInvocationException e) {

            logger.error("Unable to invoke methods for the velocity template file " + templateFile, e);

        } catch (IOException e) {

            logger.error("Unable to read the template file " + templateFile, e);

        } catch (Exception e) {

            logger.error("Unable to generate the HTML from the template file " + templateFile, e);

        }

		return null;

	}

}